发明授权
- 专利标题: Stabilizing short-term color temperature in a ceramic high intensity discharge lamp
- 专利标题(中): 在陶瓷高强度放电灯中稳定短期色温
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申请号: US10023522申请日: 2001-12-21
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公开(公告)号: US06650056B2公开(公告)日: 2003-11-18
- 发明人: Jerry Martin Kramer
- 申请人: Jerry Martin Kramer
- 主分类号: H01J6112
- IPC分类号: H01J6112
摘要:
An apparatus and method for obtaining short-term color stability in an HID lamp, the apparatus comprising in a first embodiment a high intensity discharge lamp with a discharge vessel and electrodes; with a filling within the discharge vessel containing a metal halide dose of at least 20 mg/cc, where volume is defined as the volume of the main cylindrical section of the discharge vessel. In a preferred embodiment, the filling within the discharge vessel contains Hg of at least 20 mg/cc, where volume is defined as the volume of the main cylindrical section of the discharge vessel. In a yet further aspect, the resulting color temperature is stabilized independent of the shape and frequency of the current and voltage waveforms that drive the HID lamp.